What do you think when you're thinking?

How exactly do you think?
It's a strange question, and I'm not sure I even have an answer for it myself.
I wouldn't be able to tell you which thought came first, but I could tell you that they didn't occur in chronological order.

This tells me that they are connected another way, linked by a common thread my mind uncovered that makes it easier or quicker for these thoughts to communicate.
The thoughts however aren't as distinct as the words I'm using now.

Another thing I can tell you is that I mostly think in pictures, except for when I read. It isn't that I'm not imagining the landscapes and characters being described in the pages of the book, I am, but all that comes after a voice in my head reads it back to me.

What I'm saying is that I don't strictly see pictures, like I do when I'm simply thinking.
Oddly, this voice in my head doesn't assist me when I read signs, cereal boxes, or movie posters.
I've thought about this, and it could be because those things are very similar to pictures.

A box of Froot Loops is practically a symbol, therefore I believe my brain processes it as one and no longer employs the "voice function" it uses for reading books or magazines.

So what the hell is the point of this rant?
Well, I'd like to know what happens when two people collect the same data and arrive at different conclusions. I'd like to figure out what questions need to be asked in order to determine what's going on behind the curtain of their consciousness.

What goes on in your mind when you read? Do you hear a voice, see pictures, both, neither?

What about music? Does your mind drift into images, do you pick apart the sounds, or are you overcome with emotion to the point where your mental critics shut down?

How long does it take you to count to a minute in your head? Do you use a voice, do you imagine a clock, or do you use your sense of touch and keep count with your heartbeat?